One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10)(4,7)(5,8)(6,9)(11,16)(12,15)(13,14)(17,18)(19,24)(20,30)(21,26)(22,23)(25,31)(27,32)(28,29)(33,34,39,42)(35,40,38,48)(36,41,46,37)(43,44,45,47)(1,3,6,4)(2,7,9,10)(5,11,14,12)(8,15,13,16)(17,19,23,29)(18,24,22,28)(20,27,31,21)(25,26,30,32)(33,35,39,38)(34,40,42,48)(36,43,46,45)(37,47,41,44)(17,20,23,31)(18,25,22,30)(19,21,29,27)(24,32,28,26)(33,36,39,46)(34,37,42,41)(35,43,38,45)(40,47,48,44)(1,4,6,3)(2,7,9,10)(5,12,14,11)(8,15,13,16)(17,20)(18,25)(19,27)(21,29)(22,30)(23,31)(24,26)(28,32)(33,36)(34,41)(35,43)(37,42)(38,45)(39,46)(40,44)(47,48)(1,2)(3,10)(4,7)(5,13)(6,9)(8,14)(11,15)(12,16)(17,21,23,27)(18,26,22,32)(19,20,29,31)(24,30,28,25)(33,37,39,41)(34,36,42,46)(35,44,38,47)(40,45,48,43)(1,5)(2,8)(3,11)(4,12)(6,14)(7,15)(9,13)(10,16)(17,22,23,18)(19,28,29,24)(20,30,31,25)(21,26,27,32)(33,38,39,35)(34,40,42,48)(36,45,46,43)(37,47,41,44)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.